以下哪项中的任务不可能均由丁勇完成？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31924' and id < 2552725 and id<>'2552725' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31924' and id > 2552725 and id<>'2552725' order by id asc limit 5